Electric conducting cable or wire.



C. P. BRODHUN.

mama CONDUCTING CABLE 0R WIRE.

APPLICATION FILED APR. 16. 19]].

Patented Nov. 19, 1918.

m m U n CARL P. BRODHUN, 0F WILKE-EARRE, PENNSYLVANIA, ASSIGNOR T0 HAZARD MANU- FACTURING COMPANY, OF WILKES-BARN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANEA.

ELECTRIC CONDUCTING CABLE 0R WIRE.

Application filed April 16, 1917.

To all whom it may concern Be it known that I, CARL P. BnoonUN, a citizen of the United States, residing at lVilkes-lhrrre, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Electric Conducting Cables or Wires, of which the following is a specification.

This invention relates to electric conducting ables or wires. It is applicable to cables which are covered with an insulating material, particularly material such as textile or equivalent fibrous or absorbent covering applied by braiding, weaving, winding or otherwise.

As heretofore practised, coverings for cables and the like have been applied without much thought of the consequences which will occur when the covering becomes worn or loosened around the conductor; in a great many instances, particularly where the cables are used, for instance to supply electricity to mine car locomotives, the cables are required to travel over uneven and roughened surfaces, as well as to pass through guideways and the like. This causes considerable wear and tear on the cable and when the covering becomes wornconditions causes considerable trouble when r it becomes jammed in a guideway, the result being that the insulation is either stripped from the cable or the cable broken.

The object of the present invention is to overcome the disadvantages above outlined by so constructing the cable that it will be impossible for the insulating material to slip or work loose.

The invention is not limited to any particular construction of cable as it may find expression and be employed in any kind of a cable or the like which employs one or more layers of insulating material. The construction and embodiment shown in the accornpanying drawings is used merely as an illustration and it is to be understood that the scope of the invention is not limited to the Patented Nov. 19 11ers.

Serial No. 162330.

particular showing made. The points of novelty claims.

In the drawing Figure l is a side elevation of an electric cable with parts broken away and illnstratwith one or more coverings of protecting" and insulating material. Tn the present showing, the conducting core 1 is shown as having two coverings of insulating material and two coverings or binding layers of textile material. The covering may be applied in the following manner, to wit. First an insulating covering 2 0t caoutchouc or minor plastic material is applied to the conducting core 1, then a textile covering 8 is applied to the rubber covering 2 and another covering of textile material 4 is applied over the material 3,then a suitable covering oi"- insulating and waterproofing material 5 is applied over the outer textile covering 1. This method of covering the cable has proven satisfactory so far as the insulating eilect goes, but. as heretofore explained, the layers work loose and slip relative to each other. Having in mind the bad effects caused by the slipping of the different layers of covering, the principal feature of the present invention consists in embedding preferably the first covering oi textile material, in the present instance designated as 3, in the rub her or insulating covering 2, directly surrounding the conducting core 1. This layer of textile material may be embedded in the insulation :2 in any desired manner, the effect desired to be produced. being to embed the strands of material in the insulating material and cause the insulating material to be squeezed or projected up through the mesh of the textile covering and otter a oughened surface such as 6, which, when the cove mg a is applied, will offer suiiicient will be set forth in the subjoined Fail resistance or frictional contact between the roughened surface 6 and the covering st to prevent slipping of the layers relative to each other and the conducting core 1. In some instances it may be desirable to have the textile covering L constructed heavier than the coveringi.

1. In an electric cable, a conducting core, an insulation surrounding said core, a covering surrounding said insulation and embedded therein whereby portions of the insulation project beyond said covering.

2. In an electric cable, a conducting core, an insulation surrounding said core. and a covering embedded in sand insulation, said covering having openings through which the insulation projects to provide a roughened surface and a second covering embracing said roughened surface.

3. In an electric cable, a conducting core, an insulation surrounding said core, and a covering embedded in said insulation, said covering having openings through which the insulation projects to provide a roughened surface, a second covering embracing said roughened surface and an outerbituminous material surrounding said last-named covering.

The foregoing specification signed at ilkesdiarre, Pennsylvania, this 3rd day of April, 191.7.

CARL P. BRODHUN. 

